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प्रश्न
What do you mean by the term dispersion?
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उत्तर
The splitting or breaking up of the white light into its constituent colours as it passes through a refracting medium such as prism is known as dispersion
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संबंधित प्रश्न
A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?
An image that cannot be obtained on a screen is called ______.
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
How is the focal length of a spherical mirror related to its radius of curvature?
What do you understand by the term real image?
